7:10 odds, and I didn't bet! I made a couple valve cover gaskets and they're BETTER than the leaky P.O.S. I got with a gasket set. I start with the right material as previous post recommends. I flatten the material as flat as possible, place the valve cover on the material. Using a ball point pen, trace around the outside of the valve cover and cut with scissors. Next I lay the cutout over the valve cover mating surface, and locate the dowel pin holes by pressing with my finger to make an impresision of the hole to be made. Doing only one at a time, I'll punch ONE dowel pin hole. Next, using the actual dowel pin, locate the gasket over the valve cover, and repeat for the other dowel pin. Now you have the exact location for the gasket using the two dowel pins. Now, with the gasket blank over the valve cover, you use your finger and press around the gasket material where the bolt holes are at, leaving an impression of the bolt holes. Now punch out the bolt holes. Next, with the gasket blank over the valve cover, you press all around the gasket material where the inside contour is, leaving an impression on the material. Using an exacto knife, I cut out the inside pattern. That leaves you with a custom fit, and looks perfect, with no excesst gasket sticking out. Just be sure you get material that's recommended for oil exposure.